Structural, magnetic and dielectric properties of vanadium substituted four layered Aurivillius Bi5FeTi3O15 ceramics

被引：12

作者：

Prajapat, Deepak ^{[1
]}

Sagdeo, Archna ^{[2
,3
]}

Reddy, V. Raghavendra ^{[1
]}

机构：

[1] UGC DAE Consortium Sci Res, Univ Campus,Khandwa Rd, Indore 452001, Madhya Pradesh, India

[2] RRCAT, Ind Synchrotrons Utilizat Sect, Indore, Madhya Pradesh, India

[3] Homi Bhabha Natl Inst, Training Sch Complex, Mumbai 400094, Maharashtra, India

来源：

CERAMICS INTERNATIONAL | 2019年 / 45卷 / 15期

关键词：

Multiferroics; Aurivillius compounds; Magnetization; Mossbauer spectroscopy; Dielectric relaxation; MULTIFERROICS; DIFFRACTION; BEHAVIOR; OXIDES;

D O I：

10.1016/j.ceramint.2019.06.154

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The present work reports the study of four layer Aurivillius compound Bi5FeTi3O15 (BFTO) with V5+ (<= 50%) doping at B-site (Fe3+, Ti4+). This is considered to be equivalent of increasing the magnetic ion (Fe3+) concentration from 25% to 37.5%. Phase purity of the samples is confirmed with lab and synchrotron based x-ray diffraction measurements. The temperature dependent magnetization measurements indicate the paramagnetic nature of BFTO down to 2 K and the development of long-range antiferromagnetic (AFM) ordering with V5+ doping. It is observed that the AFM Neel transition temperature (T-N) decreases with increase of V5+ doping. The presence of iron oxide impurity phases is excluded from the Fe-57 Mossbauer spectroscopy measurements. Temperature dependent dielectric constant measurements show the relaxation behaviour in highly doped samples.

引用

页码：19093 / 19097

页数：5

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